| Autor: |
Karpinska, Katarzyna, Mostovoy, M, van der Vegte, MA, Revcolevschi, A, van Loosdrecht, PHM |
| Přispěvatelé: |
Zernike Institute for Advanced Materials, Theory of Condensed Matter, Optical Physics of Condensed Matter |
| Jazyk: |
angličtina |
| Rok vydání: |
2005 |
| Předmět: |
|
| Zdroj: |
Physical Review. B: Condensed Matter and Materials Physics, 72(15):155201, art.-155201. AMER PHYSICAL SOC |
| ISSN: |
1098-0121 |
| Popis: |
Photoluminescence excitation spectroscopy has revealed a highly efficient two-photon excitation method to produce a cold, uniformly distributed high density excitonic gas in bulk cuprous oxide. A study of the time evolution of the density, temperature, and chemical potential of the exciton gas shows that the so-called quantum saturation effect that prevents Bose-Einstein condensation of the orthoexciton gas originates from an unfavorable ratio between the cooling and recombination rates. Oscillations observed in the temporal decay of the orthoexcitonic luminescence intensity are discussed in terms of polaritonic beating. We present the semiclassical description of polaritonic oscillations in linear and nonlinear optical processes. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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